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30540057892 = 22192319139133
BaseRepresentation
bin11100011100010101…
…000100110100100100
32220211101111200112021
4130130111010310210
51000021223323032
622010243232524
72130545131441
oct343425046444
986741450467
1030540057892
1111a52080573
125b03978744
132b59234196
14169a06a9c8
15bdb256097
hex71c544d24

30540057892 has 48 divisors (see below), whose sum is σ = 58741119360. Its totient is φ = 13828624128.

The previous prime is 30540057857. The next prime is 30540057913. The reversal of 30540057892 is 29875004503.

It is a super-2 number, since 2×305400578922 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3339358 + ... + 3348490.

It is an arithmetic number, because the mean of its divisors is an integer number (1223773320).

Almost surely, 230540057892 is an apocalyptic number.

It is an amenable number.

30540057892 is a deficient number, since it is larger than the sum of its proper divisors (28201061468).

30540057892 is a wasteful number, since it uses less digits than its factorization.

30540057892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11092 (or 11090 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 30540057892 in words is "thirty billion, five hundred forty million, fifty-seven thousand, eight hundred ninety-two".

Divisors: 1 2 4 19 23 38 46 76 92 437 874 1748 1913 3826 7652 9133 18266 36347 36532 43999 72694 87998 145388 173527 175996 210059 347054 420118 694108 835981 840236 1671962 3343924 3991121 7982242 15964484 17471429 34942858 69885716 331957151 401842867 663914302 803685734 1327828604 1607371468 7635014473 15270028946 30540057892